Function isReasoningModel

packages/core/src/ai/thinking.ts:239–241

(provider: string, modelId: string)

 * Used by: buildPiModel to set `PiModel.reasoning`.
 */
export function isReasoningModel(provider: string, modelId: string): boolean {
  return classifyThinkingType(provider, modelId) !== 'none'
}

/**
 * PiModel compat fragment that makes the chosen thinkingLevel actually reach